Syringe Filters, Acrodisc with 13mM Ghp Mem. $1,960.26. GHP membrane, diam. 25 mm, pore size 0.45 μm - Sigma-Aldrich. Acrodisc® syringe filters GHP membrane, diam. 25 mm, pore size 0.45 μm; find -Z259845 MSDS, related peer-reviewed papers, technical documents, Syringe Filters - GHP Acrodisc® and GHP Acrosdisc® GF, Pall